A multifunctional workstation synchronous tool changing mechanism

Abstract

The present invention discloses a multifunctional workstation synchronous tool changing mechanism, comprising a worktable assembly and a spindle box assembly, wherein the worktable assembly is provided with multiple workstations, the spindle box assembly is provided with multiple spindles, a tool holder bracket is provided on one side of the worktable assembly, multiple rotating tool holders are provided on the tool holder bracket, and a rotation control mechanism for controlling the simultaneous rotation of multiple rotating tool holders is provided on the tool holder bracket, a multi-layer tool storage tray assembly is provided on the rotating tool holder, which can rotate synchronously with the rotating tool holder and can be height-adjusted relative to the rotating tool holder, and a multi-layer tool turntable is designed, which can quickly move to the corresponding height layer position according to selection, and after ejection, a corresponding group of tools can be transferred to the bottom of the multi-spindle machine tool for synchronous installation through the synchronous transfer mechanism, which is more efficient, more convenient to replace, and has more spare tool options, thereby realizing three-dimensional tool changing and meeting the needs of replacing tools of more models.

Description

Technical Field

[0001] The invention relates to automatic tool changing equipment for numerically controlled machine tools, and in particular to a multifunctional workstation synchronous tool changing mechanism. Background Art

[0002] When changing tools on CNC machine tools, tools need to be changed manually or automatically. The tool changing efficiency is low when changing tools on multiple spindles, and the tool reserve of the tool holder is small, which cannot meet more tool changing needs. Therefore, in response to the above problems, it is necessary to design a multifunctional synchronous tool changing device with multi-layer tool reserve, which can meet the needs of changing tools of more models and realize automatic delivery of tools of corresponding layers.

[0003] Therefore, the existing automatic tool changing equipment of CNC machine tools needs to be further improved. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional workstation synchronous tool changing mechanism that can realize multi-layer tool storage and meet the replacement needs of more tools. It has a large capacity and can also position each group of tools and synchronously send them to the bottom of the spindle for installation.

[0005] In order to achieve the above object, the present invention adopts the following scheme:

[0006] and a control mechanism for controlling the rotation of the plurality of rotary tool holders.

[0007] The synchronous transfer mechanism transfers multiple cutting tools to the bottom of the spindle box assembly for subsequent installation.

[0008] Furthermore, the tool holder bracket includes a bottom plate, a middle plate and a top plate, a plurality of guide shafts are provided between the bottom plate and the middle plate for connection, and a plurality of connecting rods are provided between the middle plate and the top plate for connection.

[0009] Furthermore, the plurality of rotating tool holders are evenly distributed along the transverse direction of the middle plate;

[0010] The rotary tool holder includes a circular plate mounting seat, in which a rotary circular plate is rotatably arranged.

[0011] Furthermore, the rotation control mechanism includes a worm mounting hole provided on the middle plate, the worm mounting hole and the circular plate mounting seat are connected, an adjusting worm is rotatably mounted in the worm mounting hole, a worm wheel is provided on the end surface of the rotating circular plate, and a plurality of the worm wheels are meshed with the adjusting worm for transmission;

[0012] A motor bracket is provided on the bottom plate, a servo motor is provided on the motor bracket, and an output end of the servo motor is fixedly connected to an end face of the adjusting worm.

[0013] Furthermore, the multi-layer tool storage tray assembly includes multiple layers of tool trays, multiple telescopic shafts are arranged between the multiple tool trays, multiple telescopic shaft holes are provided on the rotating circular plate, and the multiple telescopic shafts are respectively inserted into the multiple telescopic shaft holes.

[0014] Furthermore, the movable direction of the elastic movable tool fixing clamp is tilted;

[0015] The elastic movable tool fixing clamp includes an inclined guide groove arranged on the tool disc, an inclined sliding block is movably arranged in the inclined guide groove, a tool C-shaped mounting seat is arranged in the inclined sliding block, a limiting structure is arranged between the inclined guide groove and the inclined sliding block, and an elastic structure for pressing the inclined sliding block outward is arranged between the inclined guide groove and the inclined sliding block.

[0016] Furthermore, the height control component includes a lifting cylinder arranged on the base plate, a synchronous lifting plate is provided on the lifting cylinder, a plurality of synchronous circular grooves are provided on the synchronous lifting plate, a synchronous circular plate is provided between the lower ends of the plurality of telescopic shafts, and a limiting annular groove is provided on the inner wall of the synchronous circular groove for limiting the detachment of the synchronous circular plate, and the synchronous circular plate is rotatably installed in the limiting annular groove.

[0017] Furthermore, the ejection mechanism includes a plurality of annular holes provided on the top plate, an inner groove is provided on the inner wall of the annular hole close to the workbench assembly, and a drive shaft is provided on the inclined sliding block extending upward, and the drive shaft is close to the inner wall of the annular hole under the pressure of the elastic structure;

[0018] When the driving shaft moves into the inner groove, the inclined sliding block is pushed outward.

[0019] Furthermore, the synchronous transfer mechanism includes a rotating shaft seat arranged on the front side of the rotating circular plate, a rotating shaft is rotatably installed in the rotating shaft seat, a swing rod is provided at the upper end of the rotating shaft, a transfer C-shaped bayonet is provided at the outer end of the swing rod, multiple swing rods are arranged parallel to each other, a transverse push rod motor is provided on the middle plate, a rack is provided at the output end of the transverse push rod motor, a gear is provided at the lower end of the rotating shaft, and the gear and the rack are engaged for transmission.

[0020] Furthermore, the transfer C-shaped bayonet is engaged with the groove on the outer wall of the tool during the swinging process, so that the tool is transferred from the tool C-shaped mounting seat to the transfer C-shaped bayonet and moved to the bottom of the corresponding spindle.

[0021] In summary, the present invention has the following beneficial effects compared to the prior art:

[0022] The present invention solves the shortcomings of the existing automatic tool changing device. Through the structural setting of the present invention, it has the following advantages: a multi-layer tool turntable is designed, which can quickly move to the corresponding height layer position according to the selection, and automatically ejects the corresponding tools of the same group outward through the ejection mechanism. After ejection, the corresponding group of tools can be transferred to the bottom of the multi-spindle machine tool through the synchronous transfer mechanism for synchronous installation. It is more efficient, more convenient to replace, and has more spare tools to choose from, realizing three-dimensional tool changing, meeting the needs of replacing more types of tools, and has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the present invention;

[0024] Figure 2 It is a left side view of the present invention;

[0025] Figure 3 A top view of the present invention;

[0026] Figure 4 A perspective view of the tool changing device of the present invention;

[0027] Figure 5 This is a cross-sectional view of the tool changing device of the present invention;

[0028] Figure 6 This is the second cross-sectional view of the tool changing device of the present invention;

[0029] Figure 7 It is a schematic diagram of the cutter head structure of the present invention;

[0030] Figure 8 This is the third cross-sectional view of the tool changing device of the present invention;

[0031] Figure 9 for Figure 8 A partial enlarged view of point A. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-9 The present invention provides a multifunctional workstation synchronous tool changing mechanism, comprising a workbench assembly 1 and a spindle box assembly 2, wherein the workbench assembly 1 is provided with a plurality of workstations, the spindle box assembly 2 is provided with a plurality of spindles 3, a tool holder bracket 4 is provided on one side of the workbench assembly 1, a plurality of rotating tool holders 5 are provided on the tool holder bracket 4, a rotation control mechanism 6 for controlling the simultaneous rotation of the plurality of rotating tool holders 5 is provided on the tool holder bracket 4, and a rotating tool holder 5 is provided with a rotating tool holder 5 which can rotate synchronously with the rotating tool holder 5 and can be height-adjusted relative to the rotating tool holder 5. an adjustable multi-layer tool storage tray assembly 7, a plurality of elastic movable tool fixing clamps 8 are uniformly distributed on the multi-layer tool storage tray assembly 7 around the center of the multi-layer tool storage tray assembly 7, a height control assembly 9 is provided on the tool holder bracket 4 for controlling the height adjustment of the plurality of multi-layer tool storage tray assemblies 7, an ejection mechanism 10 is provided on the tool holder bracket 4 for controlling the outward ejection of the plurality of elastic movable tool fixing clamps 8 near the side of the workbench assembly 1, and a synchronous transfer mechanism 11 is provided on the tool holder bracket 4 for transferring the plurality of ejected tools;

[0034] The synchronous transfer mechanism 11 transfers the multiple cutting tools to the bottom of the spindle box assembly 2 for subsequent installation;

[0035] The multi-layer tool storage tray assembly 7 is three groups; the multi-layer tool storage tray assembly 7 is a multi-layer tool tray design;

[0036] A plurality of elastic movable tool fixing clips 8 are provided on each layer of the cutter disc;

[0037] Pre-store the cutting tools at the corresponding positions of the elastic movable cutting tool fixing clamps 8 of each group of the multi-layer cutting tool storage tray assembly 7;

[0038] Select different tools according to processing requirements and send them to the bottom of the spindle 3 for installation;

[0039] The rotating tool holder 5 can drive the multiple elastic movable tool fixing clamps 8 at the same height direction to rotate;

[0040] Adjust the different elastic movable tool fixing clamps 8 close to the side of the synchronous transfer mechanism 11; during the adjustment process, the elastic movable tool fixing clamps 8 close to the synchronous transfer mechanism 11 will be ejected outward under the control of the ejection mechanism 10, so as to facilitate the batch transfer of the synchronous transfer mechanism 11;

[0041] The height control component 9 can adjust the height position of the elastic movable tool fixing clamp 8 of each layer so that the elastic movable tool fixing clamp 8 of the corresponding layer is flush with the synchronous transfer mechanism 11, which facilitates the synchronous transfer mechanism 11 to transfer the tool on the corresponding side.

[0042] The tool holder support 4 of the present invention includes a bottom plate 401, a middle plate 402 and a top plate 403. A plurality of guide shafts 404 are provided between the bottom plate 401 and the middle plate 402 for connection, and a plurality of connecting rods 405 are provided between the middle plate 402 and the top plate 403 for connection.

[0043] The plurality of rotating tool holders 5 of the present invention are evenly distributed along the transverse direction of the middle plate 402;

[0044] The rotary tool holder 5 includes a circular plate mounting seat 501 , in which a rotary circular plate 502 is rotatably mounted.

[0045] The rotation control mechanism 6 of the present invention includes a worm mounting hole 601 provided on the middle plate 402. The worm mounting hole 601 is connected to the circular plate mounting seat 501. An adjusting worm 602 is rotatably mounted in the worm mounting hole 601. A worm gear 603 is provided on the end surface of the rotating circular plate 502. A plurality of worm gears 603 are meshed with the adjusting worm 602 for transmission.

[0046] A motor bracket 604 is provided on the bottom plate 401 , and a servo motor 605 is provided on the motor bracket 604 . The output end of the servo motor 605 is fixedly connected to the end face of the adjusting worm 602 .

[0047] The multi-layer tool storage tray assembly 7 of the present invention includes a multi-layer tool tray 701, and a plurality of telescopic shafts 702 are arranged between the plurality of tool trays 701. The rotating circular plate 502 is provided with a plurality of telescopic shaft holes 703, and the plurality of telescopic shafts 702 are respectively inserted into the plurality of telescopic shaft holes 703.

[0048] The movable direction of the elastic movable tool fixing clamp 8 of the present invention is inclined;

[0049] The elastic movable tool fixing clamp 8 includes an oblique guide groove 801 provided on the tool disc 701, an oblique slide block 802 movably provided in the oblique guide groove 801, a tool C-shaped mounting seat 803 provided in the oblique slide block 802, a limiting structure 805 provided between the oblique guide groove 801 and the oblique slide block 802, and an elastic structure 804 provided between the oblique guide groove 801 and the oblique slide block 802 for pressing the oblique slide block 802 outward;

[0050] The elastic structure 804 keeps the tool C-shaped mounting seat 803 pushed outward, and the annular hole 101 is used to limit the pop-up position of the tool C-shaped mounting seat 803, so that the tool C-shaped mounting seat 803 pops outward when it is close to the position of the spindle box assembly 2.

[0051] The height control assembly 9 of the present invention includes a lifting cylinder 901 provided on the base plate 401, a synchronous lifting plate 902 provided on the lifting cylinder 901, a plurality of synchronous circular grooves 903 provided on the synchronous lifting plate 902, a synchronous circular plate 904 provided between the lower ends of the plurality of telescopic shafts 702, and a limiting annular groove 905 provided on the inner wall of the synchronous circular groove 903 for limiting the separation of the synchronous circular plate 904, and the synchronous circular plate 904 is rotatably mounted in the limiting annular groove 905;

[0052] After the lifting cylinder 901 is started, it extends and retracts up and down, driving the synchronous lifting plate 902 to move up and down. The up and down movement of the synchronous lifting plate 902 drives the limiting annular groove 905 to move up and down. The limiting annular groove 905 drives the synchronous circular plate 904 to move up and down synchronously, so that the synchronous circular plate 904 can rotate in the limiting annular groove 905 and can also move up and down following the limiting annular groove 905.

[0053] The ejection mechanism 10 of the present invention includes a plurality of annular holes 101 provided on the top plate 403. An inner groove 102 is provided on the inner wall of the annular hole 101 close to the workbench assembly 1. A drive shaft 103 is provided on the inclined slider 802 extending upward. The drive shaft 103 is pressed close to the inner wall of the annular hole 101 by the elastic structure 804.

[0054] When the driving shaft 103 moves into the inner groove 102 , the inclined sliding block 802 is pushed outward.

[0055] The synchronous transfer mechanism 11 described in the present invention includes a rotating shaft seat 111 arranged on the front side of the rotating circular plate 502, and a rotating shaft 112 is rotatably installed in the rotating shaft seat 111. A swing rod 113 is provided at the upper end of the rotating shaft 112, and a transfer C-shaped bayonet 114 is provided at the outer end of the swing rod 113. Multiple swing rods 113 are arranged parallel to each other, and a transverse push rod motor 115 is provided on the middle plate 402. A rack 116 is provided at the output end of the transverse push rod motor 115, and a gear 117 is provided at the lower end of the rotating shaft 112. The gear 117 and the rack 116 are engaged for transmission.

[0056] The transfer C-shaped bayonet 114 of the present invention is engaged with the groove on the outer wall of the tool during the swinging process, so that the tool is transferred from the tool C-shaped mounting seat 803 to the transfer C-shaped bayonet 114 and moved to the bottom of the corresponding spindle 3.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional workstation synchronous tool changing mechanism, comprising a worktable assembly (1) and a spindle box assembly (2), characterized in that: The workbench assembly (1) is provided with a plurality of workstations, the spindle box assembly (2) is provided with a plurality of spindles (3), a tool holder bracket (4) is provided on one side of the workbench assembly (1), a plurality of rotating tool holders (5) are provided on the tool holder bracket (4), a rotation control mechanism (6) for controlling the simultaneous rotation of the plurality of rotating tool holders (5) is provided on the tool holder bracket (4), and a multi-layer tool storage tray assembly (7) is provided on the rotating tool holder (5) that can rotate synchronously with the rotating tool holder (5) and can be adjusted in height relative to the rotating tool holder (5); the multi-layer tool storage tray assembly (7) includes a plurality of a tool tray (701) for storing multiple layers of the tool; a plurality of elastic movable tool fixing clamps (8) are evenly distributed on the multi-layer tool storage tray assembly (7) around the center of the multi-layer tool storage tray assembly (7); a height control assembly (9) for controlling the height adjustment of the plurality of multi-layer tool storage tray assemblies (7) is provided on the tool holder bracket (4); an ejection mechanism (10) for controlling the ejection of the plurality of elastic movable tool fixing clamps (8) near one side of the workbench assembly (1); and a synchronous transfer mechanism (11) for transferring the plurality of ejected tools is provided on the tool holder bracket (4); The synchronous transfer mechanism (11) transfers the plurality of cutting tools to the bottom of the spindle box assembly (2) for subsequent installation; The tool holder bracket (4) comprises a bottom plate (401), a middle plate (402) and a top plate (403); a plurality of guide shafts (404) are provided between the bottom plate (401) and the middle plate (402) for connection; a plurality of connecting rods (405) are provided between the middle plate (402) and the top plate (403) for connection; The movable direction of the elastic movable tool fixing clamp (8) is tilted; The elastic movable tool fixing clamp (8) comprises an inclined guide groove (801) provided on the tool disk (701), an inclined sliding block (802) movably provided in the inclined guide groove (801), a tool C-shaped mounting seat (803) provided in the inclined sliding block (802), a limiting structure (805) provided between the inclined guide groove (801) and the inclined sliding block (802), and an elastic structure for pressing the inclined sliding block (802) outward provided between the inclined guide groove (801) and the inclined sliding block (802); The ejection mechanism (10) includes a plurality of annular holes (101) provided on the top plate (403), an inner groove (102) being provided on an inner wall of one side of the annular hole (101) close to the workbench assembly (1), and a driving shaft (103) extending upward from the inclined sliding block (802), and the driving shaft (103) is close to the inner wall of the annular hole (101) under the pressure of the elastic structure; When the drive shaft (103) moves into the inner groove (102), the inclined sliding block (802) is pushed outward.

2. A multifunctional workstation synchronous tool changing mechanism according to claim 1, characterized in that: The plurality of rotating tool holders (5) are evenly distributed along the transverse direction of the middle plate (402); The rotating tool holder (5) comprises a circular plate mounting seat (501), and a rotating circular plate (502) is rotatably arranged in the circular plate mounting seat (501).

3. A multifunctional workstation synchronous tool changing mechanism according to claim 2, characterized in that: The rotation control mechanism (6) includes a worm mounting hole (601) provided on the middle plate (402), the worm mounting hole (601) and the circular plate mounting seat (501) are connected, an adjusting worm (602) is rotatably mounted in the worm mounting hole (601), a worm wheel (603) is provided on the end surface of the rotating circular plate (502), and a plurality of the worm wheels (603) and the adjusting worm (602) are meshed and driven; A motor bracket (604) is provided on the bottom plate (401), a servo motor (605) is provided on the motor bracket (604), and an output end of the servo motor (605) is fixedly connected to an end face of the adjusting worm (602).

4. The multifunctional synchronous tool changing mechanism according to claim 3, characterized in that: A plurality of telescopic shafts (702) are provided between the plurality of tool discs (701), a plurality of telescopic shaft holes (703) are provided on the rotating circular plate (502), and the plurality of telescopic shafts (702) are respectively inserted into the plurality of telescopic shaft holes (703).

5. The multifunctional workstation synchronous tool changing mechanism according to claim 4, characterized in that: The height control assembly (9) includes a lifting cylinder (901) arranged on the base plate (401), a synchronous lifting plate (902) is arranged on the lifting cylinder (901), a plurality of synchronous circular grooves (903) are arranged on the synchronous lifting plate (902), a synchronous circular plate (904) is arranged between the lower ends of the plurality of telescopic shafts (702), a limiting annular groove (905) for limiting the separation of the synchronous circular plate (904) is provided on the inner wall of the synchronous circular groove (903), and the synchronous circular plate (904) is rotatably installed in the limiting annular groove (905).

6. The multifunctional workstation synchronous tool changing mechanism according to claim 5, characterized in that: The synchronous transfer mechanism (11) includes a rotating shaft seat (111) arranged on the front side of the rotating circular plate (502), a rotating shaft (112) is rotatably installed in the rotating shaft seat (111), a swing rod (113) is provided at the upper end of the rotating shaft (112), and a transfer C-shaped bayonet (114) is provided at the outer end of the swing rod (113), and a plurality of the swing rods (113) are arranged parallel to each other, a transverse push rod motor (115) is provided on the middle plate (402), and a rack (116) is provided at the output end of the transverse push rod motor (115), and a gear (117) is provided at the lower end of the rotating shaft (112), and the gear (117) and the rack (116) are engaged for transmission.

7. The multifunctional workstation synchronous tool changing mechanism according to claim 6, characterized in that: The transfer C-shaped bayonet (114) is engaged with the groove on the outer wall of the tool during the swinging process, so that the tool is transferred from the tool C-shaped mounting seat (803) to the transfer C-shaped bayonet (114) and moves to the bottom of the corresponding spindle (3).

Images